I tried downloading the mega livery pack with winrar to unzip them. I spent an hour unzipping files to the community folder, sim aircraft folder, and package aircraft folder, and still no liveries were recognized by the sim. I finally gave up and deleted everything. I’ll just wait until paid liveries are placed in the marketplace by Asobo or some other developer so I know they will work correctly. My sim has been working fine and I don’t want to keep messing with the files and get it like some of the posts I have read.
They only go in the Community folder, depending on how you installed you MAY have more than one Community folder, make sure you are using the correct one. It will be located with the Official folder.